Overlapping or very close signals in 1D/2D - how to define them (manually)?

I present here two cases that demonstrate, that with the setting of a more coarse or fine-grained tolerance of shifts, not all the assignment problems can be issued by now.
(1) there is a range where two 1H signals reside on top of each other, but the 13C is different. One would need to manually define that there is an extra 1H at the same shift, and then (manually) define e.g. in the long range who is coupled to whom.
(2) there are 13C signals that are too close or isochrone. In that case, one needs to be able to define that manually, too. In that case, if I select e.g. the 13C tolerance too small, then, other pickings from the HMBC that are not so accurate get messed up.

I add some illustration to show what I am talking about